iPadOS 16.6.1 (build 20G81) is an official Apple over-the-air update for the iPad Pro 4 (12.9-inch, Cellular), released on 2023-09-18T17:20:48Z. The update package is 3.47 GB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e21be0d03e1d6390dcdd6b9930946357c4bf4541.zip.